<template>
	<el-container class="homeContainer">
		<el-header>
			<div>
				<img src="../assets/img/heima.png" alt="" />
				<span>电商后台管理系统</span>
			</div>
			<el-button type="info" @click="logout">退出</el-button>
		</el-header>
		<el-container>
			<!-- 侧边栏 -->
			<el-aside :width="isCollapse ? '64px' : '200px'">
				<div class="toggleButton" @click="toggleCollapse">|||</div>
				<el-menu
					background-color="#333744"
					text-color="#fff"
					active-text-color="#409eff"
					:unique-opened="true"
					:collapse="isCollapse"
					:collapse-transition="false"
					:router="true"
					:default-active="activePath"
				>
					<!-- 一级菜单 -->
					<el-submenu
						:index="String(item.id)"
						v-for="item in menuList"
						:key="item.id"
					>
						<template slot="title">
							<i :class="iconsObj[item.id]"></i>
							<span>{{ item.authName }}</span>
						</template>
						<!-- 二级菜单 -->
						<el-menu-item
							:index="subItem.path"
							v-for="subItem in item.children"
							:key="subItem.id"
							@click="saveNavState(subItem.path)"
						>
							<template slot="title">
								<i class="el-icon-menu"></i>
								<span>{{ subItem.authName }}</span>
							</template></el-menu-item
						>
					</el-submenu>
				</el-menu></el-aside
			>
			<el-main>
				<router-view></router-view>
			</el-main>
		</el-container>
	</el-container>
</template>

<script>
export default {
	data() {
		return {
			menuList: [],
			iconsObj: {
				125: 'iconfont icon-users',
				103: 'iconfont icon-tijikongjian',
				101: 'iconfont icon-shangpin',
				102: 'iconfont icon-danju',
				145: 'iconfont icon-baobiao',
			},
			isCollapse: false,
			activePath: '',
		}
	},
	created() {
		this.getMenuList(),
        this.activePath = window.sessionStorage.getItem('activePath')
	},
	methods: {
		logout() {
			window.sessionStorage.clear()
			this.$router.push('/login')
		},
		// 获取菜单数据
		async getMenuList() {
			const { data: res } = await this.$http.get('menus')
			if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
			this.menuList = res.data
		},
		toggleCollapse() {
			this.isCollapse = !this.isCollapse
		},
		saveNavState(activePath) {
			window.sessionStorage.setItem('activePath', activePath)
            this.activePath = activePath
		},
	},
}
</script>
<style lang="less" scoped>
.homeContainer {
	height: 100%;
}
.el-header {
	display: flex;
	justify-content: space-between;
	padding-left: 0px;
	align-items: center;
	font-size: 20px;
	color: white;
	background-color: #373d41;
	div {
		display: flex;
		align-items: center;
		span {
			margin-left: 5px;
		}
	}
}
.el-aside {
	background-color: #333744;
	.el-menu {
		border-right: none;
	}
}
.el-main {
	background-color: #eaedf1;
}
.iconfont {
	margin-right: 10px;
}
.toggleButton {
	background-color: #4a5064;
	font-size: 10px;
	line-height: 24px;
	color: #fff;
	text-align: center;
	letter-spacing: 0.3em;
	cursor: pointer;
}
</style>